This juice bottle is designed for the catering industry. It's great for holding milk tea and cold-brewed tea. Of course, it can also be used as a water cup or a tea cup. It's convenient to carry. This one is made of glass and has a few minor flaws. Tiny bubbles are within the normal range and do not affect its use. The surface of the glass looks a bit uneven, but in fact, the thickness is definitely the same. Both tall and thin glass products have this feeling. Please use it with confidence, dear friends. Dear friends, do you ask if you can pour boiling water? The answer is yes. You must preheat it first. That is, first shake it evenly with a little hot water. Because the glass is thick, pouring boiling water suddenly can easily cause it to crack. This is a little common sense in life. Please use it with caution!